IC-Hersteller Analog Devices

IC-Hersteller (103)

Analog Devices LT8618-3.3

High Efficiency 65V/100mA Synchronous Buck

Details

TopologieAbwärtswandler
Eingangsspannung3.4-60 V
Schaltfrequenz200-2200 kHz
Ausgang 12.5 V / 0.1 A

Beschreibung

The LT®8618 is a compact, high speed synchronous monolithic step-down switching regulator that delivers up to 100mA with high efficiency at constant switching frequency, even up to 2.2MHz. It accepts a wide input voltage range up to 65V (transients only, 60V for continuous operation), and consumes only 2.5μA of quiescent current.

Eigenschaften

  • High Efficiency Synchronous Operation
  • 90% Efficiency at 30mA, 12VIN to 3.3VOUT

  • Ultralow Quiescent Current Burst Mode® Operation
  • < 2.5μA IQ Regulating 48VIN to 3.3VOUT
  • Output Ripple < 10mVP-P
  • 3.4V to 60V Input Operation Range (65V Max)
  • Fast Minimum Switch-On Time: 35ns
  • Adjustable Switching Frequency: 200kHz to 2.2MHz
  • Fixed 3.3V Output Voltage Version

Typische Anwendungen

  • Industrial Sensors, Industrial Internet of Things, Flow Meters
  • 4mA to 20mA Current Loops, Automotive Housekeeping Supplies

Weiterführende Informationen

Artikeldaten

Artikel Nr.
Daten­blatt
Simu­lation
Downloads
Status
Produktserie
L(µH)
IR(A)
ISAT(A)
RDC(mΩ)
fres(MHz)
Muster
WE-LQS SMT-Speicherdrossel, 100 µH, 0.49 A
Simu­lation
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Induktivität100 µH
Nennstrom0.49 A
Sättigungsstrom0.29 A
Gleichstromwiderstand1043 mΩ
Eigenresonanzfrequenz11 MHz